8.5 inch Super Silent Hamster Wheel: Specially designed with double ring bearings, this silent spinner will make no noise at night when your hamster is running on the race track.Easy to install and use safety: These running wheels can be placed on the tabletop with the base attached.All in one super stable: Produced via injection molding instead of simply gluing together or heat bending acrylic sheet like cheaper competitors. It is expected to last for decades.Keep hamster's health, safety and comfort in mind: Unlike other low-profile acrylic wheels, our hamster wheel has no sharp edges or joints. It has non-slip strip and large running space.Easy to clean and maintain: The entire wheel can be removed with the included accessories. On the other hand, you can clean it directly under running water.Hamsters are very active creatures when living in the wild. They spend most of their waking time running around to gather food or dig burrows. When housed in a cage, this biological programming does not shut off!